tester.method = method;
        method.invoke(tester, new Object[] {null});
      }
    }
  }

  private Type getOnlyParameterType() {
    assertThat(method.getGenericParameterTypes()).hasLength(1);
    return method.getGenericParameterTypes()[0];
  }

  @SuppressWarnings({"rawtypes", "unchecked"})
  private static Type getSupertype(Type type, Class<?> superclass) {
    Class rawType = superclass;

        tester.method = method;
        method.invoke(tester, new Object[] {null});
      }
    }
  }

  private Type getOnlyParameterType() {
    assertThat(method.getGenericParameterTypes()).hasLength(1);
    return method.getGenericParameterTypes()[0];
  }

  @SuppressWarnings({"rawtypes", "unchecked"})
  private static Type getSupertype(Type type, Class<?> superclass) {
    Class rawType = superclass;

            final Map<TypeVariable<?>, Type> map) {
        assertArgumentNotNull("constructor", constructor);
        assertArgumentNotNull("map", map);

        return createParameterizedClassDesc(constructor.getGenericParameterTypes()[index], map);
    }

    /**
     * メソッドの引数型を表現する{@link ParameterizedClassDesc}を作成して返します。
     *
     * @param method
     *            メソッド。{@literal null}であってはいけません
     * @param index